Haapi

Haapi, also Haip and Ha'ip was a commissioner of the 1350–1335 BC Amarna letters correspondence. The name "Hapi" in Egyptian is the name for the Nile god "Hapi".
Haapi is referenced in 3 letters from the Byblos-("Gubla") corpus of the prolific writer Rib-Hadda, of 68 letters. Haapi is also referenced in letter EA 149 of Abimilku of Tyre-("Surru"), (EA for 'el Amarna').
The following letters are referenced to Haapi/Ha'ip:
The letters of commissioner: Haapi/Ha'ip.
EA 149, "Neither water nor wood", letter no. 4 of 10.
Letter no. 4 of 10 by Abimilku of Tyre.
EA 132, "The hope for peace".
Rib-Hadda letter; see Egyptian commissioner: Pahura.
EA 107, "Charioteers, but no horses".
See also Maryannu; in letter: "mar-i(y)a-nu-ma", =charioteer.
EA 107 is a virtually undamaged tablet-letter. 107 also shows the precise spelling of the term: "charioteer"/Maryannu.
The 'matters'/'discussions', (i.e. the topic), of this letter appears to be twofold: 1) Ha'ip justification, or appropriateness as a commissioner, and 2) the events in Damascus/"Dimašqu" with the warring Aziru.