"upon receipt" is a correct and usable phrase in written English. It means "when you have received something." Example sentence: Upon receipt of the documents, she filed them away in the cabinet.
§ 107.1210 Payment of leverage fee upon receipt of commitment.
Upon receipt, it is to be signed and returned.
§ 210.9 Action of Commission upon receipt of complaint.
Upon receipt of confirmation, proceed to next step.
Service of a complaint is complete upon receipt.
Each commanded in large block letters: Payment is due upon receipt of this invoice.
(Poisonous snakes will be erased upon receipt of a yellow air-warning).
In some countries the bar association upon receipt of a complaint will hold a hearing.
Upon receipt, we will work together to make a plan for stabilization".
BP has demanded payment "30 days upon receipt," or as early as Friday.
Upon receipt of the defense brief, the prosecution will have 60 additional days to respond.
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Cristina Valenza
Retail Lead Linguist @ Apple Inc.