PDR1096W
<PAGESIZE> defaults for <INPUT> name set to maximum total of output <MGRID> pages: PageX & PhyPageX set to pageX. PageY & PhyPageY set to pageY.
What happened: You specified that your output was multiple up, but did not specify a <PAGESIZE> tag in your Input groups. EngageOne™ Enrichment calculates your physical page size and printable area by multiplying the number of multiple-up rows by the Mup group <MSIZE> tag pageX parameter to get the X dimension; similarly by multiplying the number of multiple-up columns by the pageY parameter to get the Y dimension. The new pageX and pageY values, as well as the Input group <NAME> tag name value of the input for which they are reset are given.
What to do: If you want to specify a page size that is larger or smaller than the size of the total number of logical pages on a page side, add a <PAGESIZE> tag to your Input groups.