Thanks for your contributions. However there are some issues with the module.
1. In the hooks.php the link should be $path_to_root . "/modules/requisition_details.php"
2. In the /sql/update.sql file, the IF EXISTS after DROP FUNCTION should be there.
3. In the /sql/update.sql file, the table prefix should be for function get_item_tax
4. In the /sql/update.sql file, the reference in 0_generate_po to get_item_tax should have a table prefix.
Could you describe how to use this module, because I couldn't get it to work. I first entered a requisition and then moved to Requisition Allocation and added a new. When Generating PO nothing happened.
Anyhow the module looks promissing, but please tell us a little about what and how this module operates.