Releasing unreleased segments in Standard SAP Idocs

Hi Friends,

I have a problem with an iDoc PPCC2PRETTICKET01, when I am trying to generate the schema for this idoc, standard function module throwing an error, saying like "Segment E1BP_PP_TIMETICKET in release 620 Unknown". I went to t-code WE31, I found that segment E1BP_PP_TIMETICKET not released. I am trying to release but the system is throwing the error like " Name range violation : Name E1BP_PP_TIMETICKET not permitted in CUSTOMER system" .

But I need to generate the schema for this idoc. Is there any possibility to release this segment, if yes, please let me know the steps to process.

Awaiting for your reply.

Thanks and Regards

Praveen