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Process documentationProcessing Master Data Queues in Supply Network Planning (SNP)

 

Master data in Supply Network Planning (SNP) is used to assign master data combinations in SAP Advanced Planning and Optimization (SAP APO) to planning objects used in SNP planning (for example, the valid location, product, and resource combinations). SNP master data queues and SNP master data queue management processes keep track of the changes in APO master data and update SNP master data when requested by planning applications.

Master data queue processing events in Supply Network Planning occur at many points in the SNP planning process, for example, when the planner enters interactive planning, loads a master data selection, or starts a planning run.

Prerequisites

You have initialized at least one planning version for at least one SNP planning area.

Note Note

The term SNP planning area refers to a planning area using one of the SNP standard master planning object structures 9ASNPBAS or 9ASNPSA.

End of the note.

To use time series you need an SNP planning area that contains time series key figures. For more information, see Planning Area Administration.

Process

SNP Master Data Update

  1. APO Master Data Change

    If there is a change in the master data of SAP Advanced Planning and Optimization (SAP APO), the system sends a change notification to SNP, where the changes are lined up in the SNP level one queue (table /SAPAPO/TSQUEUE). The system automatically performs change notification and registration and immediately after the master data change.

  2. SNP Queue Update

    The system updates SNP queue during planning area initialization, at the start of SNP interactive planning or any other SNP planning application.

    The SNP queue update deletes the entries in the level one queue and by processing them creates entries in the level two queues (in table /SAPAPO/TSQMLO). Entries in level two queues are more detailed than entries in level one queue, and they also describe the required changes in SNP master data.

    By default the queue update is executed in a background process to speed up the startup of interactive planning. You can change the runtime behavior of queue update in Customizing for Advanced Planning and Optimization under Start of the navigation path Supply Chain Planning Next navigation step Supply Network Planning (SNP) Next navigation step Basic Settings Next navigation step Maintain Global SNP Settings End of the navigation path Change the runtime behavior in the TS: Que. Proc. field.

    You can also run the queue update process manually with the /SAPAPO/TS_LCM_QUEUE_UPDATE report

  3. SNP Master Data Update

    At the start of an SNP application (for example, SNP heuristic), the system updates SNP master data based on the entries of the level two queue. SNP master data update is also performed as a part of planning area initialization or at the start of SNP planning applications. SNP interactive planning performs the master data update when you load a selection to the shuffler.

  4. Delta Initialization of Planning Areas

    The system updates the time series whenever planning area initialization is carried out. For more information, see Delta Initialization of Planning Areas.

The following error messages may occur during planning:

  • E207(/SAPAPO/TSM) No liveCache anchor found

  • E020(/SAPAPO/OM_TS) Time series does not exist

  • E219(/SAPAPO/TSM) Invalid data status

  • E230(/SAPAPO/TSM) No plannable characteristic combinations available

  • E001(/SAPAPO/SDP_MD) Planning object could not be determined

  • E085(/SAPAPO/SDP) Error reading data - planning book cannot be processed

In most cases, errors occur because the time series objects are not updated before planning with planning area initialization. If you run planning area initialization and it does not solve the error, run the following consistency checks:

  • Consistency check for the time series network

    On the SAP Easy Access screen, choose Start of the navigation path Advanced Planning and Optimization Next navigation step Supply Network Planning Next navigation step Environment Next navigation step Current Settings Next navigation step Time Series Administration Next navigation step Consistency Check of Time Series Network End of the navigation path (transaction /SAPAPO/TSCONS).

  • liveCache consistency check

    On the SAP Easy Access screen, choose Start of the navigation path Advanced Planning and Optimization Next navigation step APO Administration Next navigation step liveCache/LCA Routines Next navigation step Tools Next navigation step liveCache Consistency Check End of the navigation path (transaction /SAPAPO/OM17).

For more information, see SAP Help Portal at Start of the navigation path http://help.sap.comInformation published on SAP site Next navigation step SAP Business Suite Next navigation step SAP Supply Chain Management Next navigation step SAP SCM 7.0 Next navigation step Application Help Next navigation step SAP Supply Chain Management (SCM) Next navigation step SAP Advanced Planning and Optimization (SAP APO) Next navigation step Demand Planning Next navigation step Demand Planning Process Next navigation step Planning Area Administration Next navigation step Planning Area Next navigation step Editing Planning Areas and Additional Functions Next navigation step Consistency Checks for Planning Areas End of the navigation path and SAP Note 577038Information published on SAP site.

Performance Optimization

The performance of SNP master data management processes affects the performance of all SNP planning applications. You can optimize SNP master data management in the following ways:

  • Master data changes

    Changing master data too frequently affects the performance of SNP master data update processes negatively. Therefore, we recommend that you release master data changes periodically, for example, on a daily basis, and followed by delta initialization of planning areas.

  • Regular planning area initialization

    If you use SNP planning areas with time series key figures, initialize the planning areas regularly to keep the liveCache time series up-to-date and to reduce the number of entries in level two master data queues. Initialize planning areas for all previously initialized planning versions.

  • De-initialization of unused planning versions

    If there are planning versions that you do not use anymore, you should de-initialize them to decrease the data load on SNP master data update processes, especially the number of entries in level two master data queues.

Monitoring SNP Master Data Queue Update in the Computing Center Management System (CCMS)

As of SCM 7.0 there are monitoring entries available in CCMS to monitor the status of SNP master data queues. You can monitor the runtime of queue update process, the number of entries in each queue, the number of entries belonging to a specific planning area and planning version combination, and the time spent since the last initialization of a planning area.

To monitor SNP master data queue update, complete the steps below:

  1. To call the CCMS, on the SAP Easy Access screen, choose Start of the navigation path Advanced Planning and Optimization Next navigation step APO Administration Next navigation step Integration Next navigation step Monitor Next navigation step CCMS Monitor Sets End of the navigation path.

  2. To call the APO monitor set, choose Start of the navigation path SAP SCM Monitor Templates Next navigation step APO Monitor Next navigation step SNP Monitor End of the navigation path in the CCMS hierarchy tree.

  3. Choose SNP Monitor in the CCMS hierarchy tree.

    You can navigate to individual monitors grouped by system and client by opening the corresponding nodes of the hierarchy tree. Choose node Start of the navigation path SNP Monitor clnt. x Next navigation step SNP Master Data and Timeseries End of the navigation path.

  4. The monitoring entries are grouped to 3 monitoring objects:

    1. SNP MD queue lev. 1

      Contains the number of entries in the level one queue and the runtime of the last queue update

    2. SNP MD queue lev. 2

      Contains the number of entries in each level two queue

    3. SNP Time Series

      Contains the number of corresponding entries in the level two queues for each initialized SNP planning area and planning version combination, as well as the time spent since the last initialization

  5. The colors of the entries help you to recognize problems at the highest level. For more information about the color legend, see Display Types and Views of the Alert Monitor.

  6. You analyze the problems and can go directly to the relevant transaction to receive more details or to rectify a problem.

For more information about the CCMS, see SAP APO Monitoring with CCMS.

More Information

For more information about planning area functions and planning area initialization, see SAP Help Portal at Start of the navigation path http://help.sap.comInformation published on SAP site Next navigation step SAP Business Suite Next navigation step SAP Supply Chain Management Next navigation step SAP SCM 7.0 Next navigation step Application Help Next navigation step SAP Supply Chain Management (SCM) Next navigation step SAP Advanced Planning and Optimization (SAP APO) Next navigation step Demand Planning Next navigation step Demand Planning Process Next navigation step Planning Area Administration Next navigation step Planning Area Next navigation step Planning Area Functions in S&DP Administration Next navigation step Initializing Planning Areas in Background Jobs End of the navigation path.

For more information about data storage, see SAP Help Portal at Start of the navigation path http://help.sap.comInformation published on SAP site Next navigation step SAP Business Suite Next navigation step SAP Supply Chain Management Next navigation step SAP SCM 7.0 Next navigation step Application Help Next navigation step SAP Supply Chain Management (SCM) Next navigation step SAP Advanced Planning and Optimization (SAP APO) Next navigation step Supply Network Planning Next navigation step Planning Area Administration Next navigation step Saving Data in DP and SNP End of the navigation path.