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Creating a Rule-Based Pool Linkage 
You use the rule-based pool linkage
• If you want to link your single contract with a pool contract, but the start date of the single contract is unknown or not defined yet
• If you can only describe start date of the single contract with a date rule
The system creates the rule-based linkage during contract inception. If the contract is already active, you cannot create a rule-based pool linkage.
If the system cannot activate the pool linkage, an error message is displayed.
• You have not activated the single contract yet.
• You have created a pool contract.
• The organizational data and currency are identical in both the contract item and the pool contract item.
The following figure shows the process flow for the rule-based pool linkage:
