Diagnosis
You tried to attach WBS element &V1& to a program position. Thesettings for this program position specify that all WBS elements thatare assigned to it receive their budget solely from this programposition during budget distribution.
However, the WBS element &V1& that you are trying to attach already hasa budget. The budget it has received does not come from aninvestment program. Or, availability control is still active for theWBS element.

System Response
In order to avoid inconsistencies, the system does not attach the WBSelement to the investment program position.

Procedure
First reduce to zero all currently existing budget amounts on WBSelement &V1& (for example, using budget returns). And, if necessary,deactivate availability control for the WBS element.
Then you can attach the WBS element to the program position, anddistribute budget amounts from the program position to the WBS element.
following text copied in part from message AP102
If you want to avoid deactivating availability control, there isanother option. You can remove 'budgeted' status on the WBS element(transaction OPSX).
To be able to remove 'budgeted' status, you have to reduce the currentoverall and annual budget on the WBS element to zero, and - veryimportant - you have to use the same business transaction(original, supplement, return ... ) as was used for entering theoriginal budget!
If the current overall and annual budgets already consist of more thanone business transaction, then you have to remove each of the budgetsseparately according to the business transaction used. (In order toavoid temporary inconsistencies, you should also ideally do this in thereverse order to that in which the budget was posted.)
Example
You create a current overall budget as follows:
RESET N1.
Original budget 1000
Supplement 200
Return 50
To remove 'budgeted' status from the WBS element, it is not enough toenter a return of 1150, for example, even though this would reduce thecurrent overall budget to zero.
Instead you have to reduce the current overall budget to zero in thefollowing sequence:
RESET N1.
Return 50-
Supplement 200-
Set original budget of 1000 to 0.
You can only remove 'budgeted' status on the WBS element (transactionOPSX) after following these steps.