What are the rejection cases in all methods of Procurement?

PROBLEM DELIVERIES Supplier Return Note shall be completed and issued to the supplier andforward copy to Procurement Engineer who will enter the information onto the SupplierEvaluation List  This will allow any potentialproblems to be known about before placing future orders. It will also highlight any trends eg: a Supplier could be delivering faulty or late goods to all sites, but each  Engineer believes its only a one-off problem for hisproject. Any such trends identified by

Rejection reasons including but not restricted to

·         Late bid

·         Violation of any ITB clauses

·         Non provision of BS

·         Failure to gratify performance security within the period specified (15) days

·         False statement about the certificate of good conduct

The rejection cases are numerious and may also depend on the regulations of a certain country /organization; however, the most commen rejection cases are:

Major bid deviation from the original requirements stated in the bidding documents; bid based on discount of the lowest price submitted; bid not accompanied by bank guareentee or accompanied by conditional bank guarenttee; bids submitted by debared firms; bids accompanied by major reservations on the original requirements; bids submitted by bidders violated the code of ethics/conduct.  This are the common cases at the time of bidding. 

If we are talking about the rejection cases at the contract implementation, the cases are; provision of a product/service/work incompatible to the original requirements stated in the bidding/contract documents. 

The notion at the begining of this answer to the different regulations used refers to the degree of strictness of the regulations, where some of these regulations include in the rejection cases the bid corrections over a certain threshold, and bids with unpriced items exceeding certain threshold....Etc.