POWL - Query parameters doesn't open

Hi Gurus,
I configured a POWL for shopping carts based on SAPSRM_E_CHECK_STATUS.
1. Create custom application ID
2. Create a custom POWL type with the standard feeder (/SAPSRM/CL_CLL_PWL_A_SC_ESS)
3. Create the link between application ID and POWL type (Tx. POWL_TYPER)
4. Create the query with the POWL Type ID.
At this last one if you click on button "Query parameters" any windows is opened.
Can anybody help me?
I double check the configuration but I didn't see any problem.
Many thanks in advance.
David.

Hi Konstantin,
I solved by myself.
I didn't create the field catalog for POWL Type. For this reason I hadn't any field to show into the query parameters.
Thanks,
David.

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