L’archivage commence après la synchronisation.

Because le becomes l’ before a vowel sound.

• archivage is a masculine noun, so the full article is le
• But French avoids le archivage
• So it contracts to l’archivage

This is very common:

• le ami → l’ami
• la école → l’école
• le ordinateur → l’ordinateur

So l’ can stand for either le or la, depending on the noun.

It is masculine.

So:

• le archivage → l’archivage

You usually learn noun gender together with the noun:

• l’archivage = archiving / the archiving process

Even though l’ hides the gender, the noun itself is still masculine.

Not exactly.

• archivage = the process of archiving
• archives = archives, archived records, or archive materials

So in this sentence, l’archivage refers to the action or process, not the stored documents themselves.

Compare:

• L’archivage commence... = The archiving begins...
• Les archives sont prêtes. = The archives are ready.

Commence is the third-person singular present tense of commencer.

The subject is l’archivage, which is singular, so French uses:

• l’archivage commence = archiving begins / archiving starts

This is the same pattern as:

• Le film commence. = The film starts.
• La réunion commence. = The meeting begins.

French often uses the present tense where English may prefer either the present or the future, depending on context.

So:

• L’archivage commence après la synchronisation.

can mean:

• Archiving begins after synchronization.
• Archiving will begin after synchronization.

French present tense is often used for scheduled steps, instructions, processes, and general statements.

Après means after.

In this sentence, it is followed by a noun phrase:

• après la synchronisation = after synchronization

Yes, après can be followed by a noun:

• après le repas = after the meal
• après la réunion = after the meeting

It can also be followed by a pronoun:

• après lui = after him

And in some structures, French uses après avoir or après être + past infinitive:

• après avoir mangé = after eating / after having eaten

But here, the simple noun phrase is the natural structure.

Because synchronisation is a feminine noun.

So it takes the feminine singular article la:

• la synchronisation

Many French nouns ending in -tion are feminine:

• la communication
• la préparation
• la situation
• la synchronisation

This is a very helpful pattern, though it is always best to learn each noun with its article.

French uses articles more often than English does.

In English, you might say:

• after synchronization

But French usually says:

• après la synchronisation

French generally prefers an article before a singular countable or abstract noun in many contexts where English may omit it.

So this is normal French usage, not something unusual about this sentence.

Usually, après la synchronisation is the standard and safest form.

In technical or procedural language, you may sometimes see article omission in headings, labels, or very compressed style, but in a normal full sentence, après la synchronisation sounds more natural.

So for learners, use:

• après la synchronisation

In commence, the final -e is not strongly pronounced, and there is no -ent here.

It is roughly pronounced like:

• koh-mahns

A few helpful points:

• com- sounds like kohm
• -mence has a nasal vowel, roughly mahns
• the final written e is usually not pronounced

Also, this form is commence, not commencent.

If it were commencent (they begin), the -ent ending would also usually be silent.

A natural pronunciation is approximately:

Lar-shee-vazh koh-mahns ah-preh lah seen-kroh-nee-zah-syohn

A few notes:

• L’archivage links smoothly: l’archivage
• après sounds like ah-preh
• synchronisation has the French r and a final -tion pronounced roughly syohn

If you want to sound more natural, focus on smooth flow rather than pronouncing every written letter separately.

Yes, very close.

French:

• L’archivage = the subject
• commence = the verb
• après la synchronisation = the time expression

So the structure is:

• Subject + verb + time expression

This is very similar to English:

• Archiving begins after synchronization.

Yes, often.

• L’archivage commence après la synchronisation.
• L’archivage débute après la synchronisation.

Both can mean Archiving begins after synchronization.

However:

• commencer is very common and neutral
• débuter is also common, but sometimes sounds a bit more formal or stylistically different depending on context

For a learner, commence is the most straightforward choice here.