Before proceeding you must have confirmed that:
You cannot find your requirement on the Goods and Services Catalogue
You have accurately estimated the value of your requirement and it is less than £5,000
Steps for purchasing when your requirement is between £0 and £5,000
UEA Financial Regulations do not require any specific process. You can choose a supplier you determine offers value for money and follow the normal order process to meet your requirement.
Procurement would advise that you source quotes from multiple suppliers for your requirement. By doing so you will ensure you are getting the best value for money. It is not however mandatory to do this.