Så længe dokumentationen viser kortmisbruget, kan jeg gøre indsigelse.

Here så længe means as long as or provided that.

It introduces a condition:

• Så længe dokumentationen viser kortmisbruget ...
• As long as / provided that the documentation shows the card misuse ...

This is a very common Danish expression. In other contexts, så længe can also relate to time, but in sentences like this it is often best understood as a condition.

Because dokumentationen is the definite form: the documentation.

• dokumentation = documentation
• dokumentationen = the documentation

Danish usually adds the definite article to the end of the noun:

• en bil = a car
• bilen = the car

Even though documentation is often uncountable in English, Danish still commonly uses the definite form when referring to specific documentation already known from the context.

Yes, it is one word, and that is very typical in Danish.

It is a compound noun:

• kort = card
• misbrug = misuse / abuse
• kortmisbrug = card misuse, card fraud, misuse of a card
• kortmisbruget = the card misuse / the fraudulent card use

Danish forms many concepts by combining nouns into one word, much more often than English does.

Because misbrug is a neuter noun in Danish: et misbrug.

That means the definite singular ending is -et:

• et misbrug = a misuse
• misbruget = the misuse

So:

• et kortmisbrug
• kortmisbruget

If it were a common-gender noun (en-word), the definite ending would usually be -en instead.

This is because Danish main clauses follow the V2 rule: the finite verb usually comes in second position.

The sentence starts with the subordinate clause:

• Så længe dokumentationen viser kortmisbruget

After that, the main clause begins. Since the first position is already taken by the subordinate clause, the finite verb comes next:

• kan = second position
• jeg = subject comes after the verb

So:

• Så længe ..., kan jeg ...

If you wrote the main clause by itself, it would be:

• Jeg kan gøre indsigelse.

But after a fronted clause, Danish inverts the normal subject-verb order:

• Så længe ..., kan jeg gøre indsigelse.

Yes.

It is introduced by så længe, which functions as a subordinating expression here. The clause gives the condition under which the main clause is true.

So the structure is:

• Subordinate clause: Så længe dokumentationen viser kortmisbruget
• Main clause: kan jeg gøre indsigelse

This is why the word order changes in the main clause after it.

Yes, gøre indsigelse is a fixed expression.

Literally, it is something like make an objection, but in real usage it often means:

• object
• lodge an objection
• dispute
• contest
  depending on context

In banking, legal, or administrative language, gøre indsigelse is very common. It often means formally disputing something, such as a charge or transaction.

So even though the literal pieces are:

• gøre = do / make
• indsigelse = objection

you should learn gøre indsigelse as a whole phrase.

Because in the expression gøre indsigelse, Danish normally uses indsigelse without an article.

This is similar to how some expressions in English use a bare noun:

• take action
• raise concern
• make sense

So:

• gøre indsigelse = to object / to lodge an objection

You would not normally say gøre en indsigelse in this standard expression.

Here vise means show.

• viser = present tense
• dokumentationen viser kortmisbruget = the documentation shows the card misuse

This is a normal present-tense form. Danish verbs do not change according to person:

• jeg viser
• du viser
• han viser
• vi viser

So viser is used for all subjects in the present tense.

Danish often uses the present tense in general statements about what is possible or allowed under certain conditions.

Here the sentence means something like:

• if the documentation shows the card misuse, then I am able to object / dispute it

So the present tense works naturally because it expresses a general rule or current possibility.

Often yes, depending on context.

Literally, misbrug is misuse or abuse, so kortmisbrug is literally card misuse. But in banking and finance, the practical meaning may be closer to:

• card fraud
• unauthorized use of the card
• misuse of the card

So the best English translation depends on the exact situation. Danish often uses a broader noun where English may choose a more specific phrase.

Because the sentence begins with a subordinate clause, and Danish normally places a comma before the main clause.

So:

• Så længe dokumentationen viser kortmisbruget, kan jeg gøre indsigelse.

This comma helps mark the boundary between:

1. the condition
2. the main statement

Comma rules in Danish can vary somewhat depending on the comma system being followed, but in a sentence like this, the comma is standard and expected.

Yes, that is grammatically possible, but it changes the emphasis.

• Så længe dokumentationen viser kortmisbruget, kan jeg gøre indsigelse.
  This puts the condition first and highlights it.

• Jeg kan gøre indsigelse, så længe dokumentationen viser kortmisbruget.
  This starts with the main point and adds the condition afterward.

Both are natural, but the original sentence foregrounds the condition more clearly.

Yes, it sounds fairly formal or administrative, especially because of:

• dokumentationen
• kortmisbruget
• gøre indsigelse

This is the kind of language you might see in:

• banking communication
• legal information
• customer service texts
• official letters

In everyday speech, a speaker might choose simpler wording, but this sentence is perfectly normal in formal written Danish.