Error message when PR without SOS is transferred to SRM

Hello ,

We are on SRM 7.0 SP07 , ECC 6.0

We are facing error when PR without SOS is transferred from ECC to SRM .

error messages seen in tcode -> /sappo/ppo2 for a particular PR which are not getting transferred are S:/SAPSRM/CH_SOA_MSG:055 , S:/SAPSRM/CH_SOA_MSG:061 .

Also, we noticed free text PR are getting transferred from ECC to SRM but for PR containing material are not getting transferred and getting above error message . As per SRM 7.0 we have implemented sourcing_cust badi. also data is transferred through standard XML message ( PRERPsourcingRequest , PRERPSourcingConfirmation )

Please let me know what could be the issue.

Regards,

Ashish