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Settlement from WBS to AUC

Hello Team,

We are settling the cost of WBS to AUC. For this we have created AUC.

While settlement we are getting below error.

Transaction in area 30 contradicts the net book value rule

Message no. AA660


The document cannot be posted, as it is contrary to the net book value rule which is checked in area 30.


This error usually occurs when you enter proportional values. The proportional values exceed the amount posted, for example, post capitalization of 100 but proportional depreciation to the amount 110. Check your entries and correct them if necessary.

We have created some 26 AUC and where working fine. Now for 27 th one we are getting above error.

Please kindly help



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