MTL_TRANSACTIONS_INTERFACE Project costing issue

Hi Colleagues,

I've requested to work on an API to be used in order to perform issue a material from the store, i Worked on this task and it's working fine

except one of the transaction fails with error "Transaction source -- account alias is invalid.  Please re-enter".

This issue related to project issuance type, i..e there is a user transaction type defined under account aliases uses to issue the material into the project ...etc i think all project information inserted into the interface table  Source_project_id, Expendire...etc..

but still getting the mentioned above error!

Any one have an idea or tried before such transaction ? your input is much appreciated