Glossary entry (derived from question below)
French term or phrase:
puisse mettre en avant
English translation:
[could] promote or propose
French term
Ireland
20 yrs+ quality translations, Trados
Native in: Spanish 
, English (Variants: US, British, Irish, UK)
Works in: English to Spanish, Spanish to English, Italian to English, and 8 more.
puisse mettre en avant
xxx a souhaité que l’xx s’implique activement dans des opérations de marketing à ses côtés et que xx puisse mettre en avant l’utilisation de son progiciel par l’xxpour sa plate-forme de e-commerce.
| 3 +5 | [could] promote or propose |
Christine Oduor
|
| 2 +2 | be able to promote |
Henrietta King
|
| 4 | could highlight |
Francois Boye
|
| 3 | underscore |
kashew
|
Feb 5, 2015 14:52: writeaway changed "Field" from "Law/Patents" to "Bus/Financial"
Feb 5, 2015 15:21: Sandra & Kenneth Grossman changed "Level" from "PRO" to "Non-PRO"
Non-PRO (3): Rob Grayson, Rachel Fell, Sandra & Kenneth Grossman
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Proposed translations
Cote D'ivoire
Native in: Swahili (Variants: Tanzanian, Kenyan)
Works in: French to English, Swahili to English, English to Swahili
[could] promote or propose
'puisse' from the verb pouvoir which I feel could be omitted without changing the essence of the sentence
| agree |
Philippa Smith
2 mins
|
| agree |
Tony M
: Yes, the 'que XX puisse' part is actually quite separate.
5 mins
|
| agree |
Jean-Claude Gouin
39 mins
|
| agree |
Colin Morley (X)
41 mins
|
| neutral |
Nikki Scott-Despaigne
: Sorry, not "could" but "be able to" (or even "may" if phrased differently). If phrased in such a way as to leave it out, (poss only if xx same person), then "promote" becomes "promoteS". This does depend on "souhaite que" which explains the subjunctive.
4 hrs
|
| agree |
Verginia Ophof
14 hrs
|
underscore
United Kingdom
Qualified legal translator
Native in: English (Variant: British)
Works in: French to English
be able to promote
| agree |
Nikki Scott-Despaigne
: I agree with your choice of "be able to" for "puisse" here. It can also be phrased with "may". Subjunctive works here too.
4 hrs
|
| agree |
katsy
: agree with Nikki
1 day 3 hrs
|
United States
An economic geek with social skills
Native in: French 
Works in: English to French, French to English, Spanish to English, and 1 more.
Discussion
As for the 'puisse', as Prou points out, this is simply the present subjunctive of the verb 'pouvoir', and in fact belongs together with 'XXX a souhaité que ... XX puisse' + verb in the infinitive. Again, this is standard usage.