We would be running the same program/PSB in parallel in our project. When we defined the PSB in parallel mode we were atleast able to run the programs in parallel (able to avert the U0457 abend).
But somebody informed us that we need to code our programs with check of GG return code as well, in case the row is held by one of the running programs. Please note that our PSBs are defined with GOTP option. Please help on this.