Which exit can modify AccAss. in PR for 3rd party process?

Dear experts,

I am searching for an user exit it something like this which allows me to modify the account assignment within

a PR wich will be created out of 3rd party sales order (x).

I would like to select the correct G/L account, order and cost center from anouther source.

Is there any exit for such a request?

We tried interface IF_PUR_SE_PURREQERPCRTRC1 in BAdI PUR_SE_PURREQERPCRTRC1 and Enhancement spot PUR_SPOT_SE_PURCHASE_REQUEST.

Regrettable without success. The breakpoit we places has not been reached.

For any feedback I would be very thankful!

Many thanks in advance.

Best regards

Patrick

(x)

3rd Party process:

Sales order with 3rd party item category creates purchasing requisition after saving (if no creadit block comes up).