Limitation in JDE 9.1 for PO receipt and and receipt reversal for more than 3000+ lines

Hi All,

We are using JDE 9.1 system

We have a query as below

1) Is there any limitation on JDE 9.1 for the PO receipt reversal? 

(We faced an issue of duplicate records in IL while reversing 3000+ receipt data at a time)

2) Is there any limitation on the lot split on JDE 9.1 at the time of PO receipt ?

[We faced an issue of goods receipt not happening or partially received when over 3000+ different lot#( over 3000 line split in F43121) are being received at a time]