The derivations between posting and budget addresses that you defined are saved as index entries in the database by the system. If you then make changes to the existing account assignment derivations, inconsistencies can result from this. This is always the case if the assignments stored in the database do not match the changed account assignment derivation.

You are therefore advised to carry out a consistency check every time you change the account assignment derivation. You carry out this check using the program Display Inconsistencies in Index.

If inconsistencies in the index are listed, it is necessary to reconstruct the budget structure in accordance with the new account assignment derivation strategy. During the reconstruction of the budget structure, the index entries stored in the database are updated in accordance with the new strategy. You use the program Reconstruction for this.

You carry out the check for inconsistencies in the index and the reconstruction of the budget structure in the Funds Management menu under Master Data ® Tools ® Budget Structure (Budget Control System) ® Index ® Display Inconsistencies or Reconstruct.

For more information, see the relevant program documentation.