Change CO account assignment Key
We have a requirement in our project which requires us to derive CO element based on additional attribute (apart from company code, division, ADID, Main transaction and sub transaction) for a small set of charges. So to achieve this, we plan to create a custom table with the following attributes- company code, division, ADID, main transaction. sub transaction, the additional attribute X and CO account assignment key- which will store only limited number of main and sub transactions related to few charges. These charges, which require additional attribute to determine the CO element, can be posted directly in FICA or can be part of invoice. We are implementing Convergent Invoicing for our client. I think event 1108 allows us to substitute in GL line item but since we are convergent invoicing, this event cannot be used.
My concern is that, I am not able to find an event/user exit which allows me to overwrite the CO account assignment key found by standard system configuration. Request you all to let me know if you have come across similar situation and knows how to achieve this.
Thanking in anticipation.